JP2002107050A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which formed so that an article cost and an assembly cost are low and chamber capacity can be widened. SOLUTION: In a refrigerator so formed that a compressor and a condenser, of which a refrigerant circuit is constituted, are situated in a machine room below a heat insulation box body, an evaporation pan making contact with the condenser is situated at the upper part of the condenser and the evaporation pan forms a stationary type. Thereby, a rail structure for drawing out the evaporation pan will not be needed and a part cost and an assembly cost can be reduced. Also, since the evaporation pan is of a stationary type and will not need the rail structure, the evaporation pan can be fixed in close vicinity to the lower part of a heat insulating box body and wide chamber capacity can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator in which a frost-melted drain of an evaporator is evaporated by an evaporating dish.

[0002]

2. Description of the Related Art An evaporating dish is arranged at the front of a machine room below a heat insulating box, and a drain from an evaporator is guided to the evaporating dish to evaporate.
Japanese Patent Application No. 55286/55. And
This type of refrigerator is the same type, and a condenser for forming a refrigerant circuit is arranged below the evaporating dish, and this evaporating dish is attached so as to be able to be pulled out to the front of the refrigerator using a rail structure or the like. Things are also known.

[0003]

In the case of a refrigerator in which the above-mentioned evaporating dish is attached so as to be able to be pulled out to the front, the above-mentioned rail structure and the like are required, and there is a drawback that parts cost and assembly cost are required. In addition, since a rail structure for extracting the evaporating dish is provided, a capacity for accommodating the rail structure is required in the machine room, and there is also a disadvantage that the capacity for storing in the refrigerator is reduced.

[0004] The present invention provides a refrigerator which is inexpensive in parts cost and assembly cost, and has a wide capacity in the refrigerator.

[0005]

According to the present invention, there is provided a refrigerator in which a compressor and a condenser constituting a refrigerant circuit are arranged in a machine room below a heat insulating box, and an evaporating dish is provided in contact with an upper part of the condenser. The evaporating dish is of a fixed type.

[0006] Further, there is provided a fan for discharging the air in the machine room to the outside of the machine room.

[0007] The height of the evaporating dish is set to a height that maintains a distance from the bottom plate of the heat-insulating box, and a notch is formed in the outer peripheral flange of the evaporating dish to allow air to flow.

A compressor and a fan are housed in the rear of the machine room, a condenser is housed in the front of the machine room, and a partition wall for separating the front and the rear of the machine room to prevent an air short is provided with an evaporating dish. It is formed in one piece.

In a refrigerator, frost adhering to the evaporator is heated and melted by a heater, received by an exposure tray below the evaporator, and defrosted water is discharged to the outside of the refrigerator by a drain pipe. The sealing structure is formed integrally with the evaporating dish.

A dipping condenser is provided in the evaporating dish.

A drain port for discharging the drain to the outside is provided at the periphery of the evaporating dish, and a drain plug for closing the drain port is provided.

[0012] The position of the drain port and the drain plug of the evaporating dish is located between the handles at the front of the bottom surface.

The lower part of the front of the refrigerator is provided with a cover for covering a drain port of the evaporating dish and a drain plug closing the drain port.

Further, a compressor, a condenser and an evaporator constituting a refrigeration circuit are provided, and a machine room extending from a front portion to a rear portion is provided at a lower portion of the heat insulating box, and this machine room is connected to a rear portion of the machine room in which the compressor is arranged. , A substantially flat space having a smaller height dimension than the rear part of the machine room and a front part of the machine room where the condenser is arranged,
In the refrigerator configured to guide the drain from the evaporator to the outside of the refrigerator with a drain pipe, an evaporating dish for receiving the drain is provided in contact with the upper part of the condenser at the front of the machine room and fixed, and the heat insulating box is provided. A handle is formed on both sides of the front bottom portion, and a front peripheral edge of the evaporating dish is extended to a position between the handles to provide a drain port and a drain plug for closing the drain port. Is formed integrally with a water seal structure projecting to the rear of the machine chamber and closing the end of the drain pipe with a drain at this portion, and a notch for air circulation is formed on the outer peripheral flange of the evaporating dish. .

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a refrigerator of the present invention, and 1 is a refrigerator, 2, 3, 4, 5, and 6 are a refrigerator door, a vegetable room door, an ice making room door, a switching room door, and a freezing room, respectively. Door. Reference numeral 7 denotes a detachable cover called a kick plate or the like which is attached to a lower portion of the front of the refrigerator. The cover 7 covers a drain plug and a handle, which will be described later, so as not to damage the appearance. Reference numeral 8 denotes a display indicating a refrigerator room temperature, a freezer room temperature, and the like.

In FIG. 2, reference numeral 10 denotes a compressor for constituting a refrigerant circuit, reference numeral 11 denotes a first condenser, and reference numeral 12 denotes an evaporating dish made of synthetic resin. The evaporating dish 12 is attached to the lower surface of the heat insulating box by a method such as screwing or hooking, and is a so-called fixed evaporating dish that cannot be pulled out forward. 12A is a handle 15, 15 described later.
The portion that extends between them, 12B, is the portion that extends into the rear part 9 of the machine room. Reference numeral 13 denotes a water seal structure formed in the portion 12B, and an opening at the tip of a drain pipe described later is disposed so as to face slightly obliquely from the bottom surface of the water seal structure (see FIG. 5). Is sealed by water.

Reference numeral 14 denotes a drain plug for closing a drain port at the center of the front surface of the evaporating dish 12, and is disposed so as to be located substantially between the transport handles 15 between the handles. Reference numeral 16 denotes a compressor partition formed on the back surface of the evaporating dish 12.
Is prevented from flowing to the machine room front part 18, so that a so-called short circuit is prevented.

Reference numeral 19 denotes a second condenser, and 20 denotes a blower for cooling the compressor 10 and the rear part 9 of the machine room. Although the blower 20 is composed of a fan and a fan motor, their components are not shown because they are well-known. Reference numeral 21 denotes a caster, reference numeral 22 denotes an iron compressor table, reference numeral 24 denotes a PE (polyethylene) block, which closes a gap so that small animals such as rats do not enter the machine room. Reference numeral 25 denotes a left pedestal angle, and reference numeral 26 denotes a right pedestal angle. Note that this portion may be closed with an iron plate or a resin member instead of the PE block 24.

In FIG. 3, reference numeral 30 denotes an insulated box,
1, an outer box such as a frame bottom plate (bottom plate) 32, and a urethane insulating material 33 filled in both boxes. 32A is an outer box called a frame, 32B
Is an outer box called a frame back plate, and 32C is a frame horizontal plate. Numeral 34 denotes a notch formed in the outer peripheral flange 35 of the evaporating dish 12, and the notch is formed so that air can flow therethrough.

Reference numeral 37 denotes an anti-vibration rubber, and the compressor 10 is mounted on the compressor base 22 via the anti-vibration rubber. 38 is a unit cover that covers the back of the machine room, 39 is a refrigerating evaporator (evaporator), 40 is a defrost heater for melting frost adhering to the refrigerating evaporator, 41 is a dew pan, and 42 is a dew pan. Reference numeral 43 denotes a drain pipe for guiding the drain from the refrigerating evaporator (not shown) to the evaporating dish. The first condenser 11 includes a condenser plate 44 made of iron plate attached to the lower surface of the evaporating dish, and a condenser pipe 45 attached to the condenser plate.

Reference numeral 45 shown in FIG. 4 denotes a pedestal attached to the front of the refrigerator.

The specific shape of the evaporating dish is configured as shown in FIG. The water seal structure 13 is configured such that when drain pipes 42 and 43 whose ends are cut obliquely are disposed in the device, a certain amount of the drain is accumulated. For this reason, the drain pipes 42 and 43 are sealed with a drain passing through the pipes.

In the refrigerator 1 configured as described above, since the evaporating dish 12 is fixed, the evaporating dish 1 can be removed as compared with an evaporating dish that can be pulled out using a rail structure or the like.
2 can be arranged very close to the frame bottom plate 32 (see the interval L), and the capacity occupied by the rail structure is not required, so that the refrigerator 1 can have a relatively large internal capacity. The evaporating dish is fixed to the frame bottom plate 3.
The reason for keeping the interval L from 2 is for the purpose of circulating the air and for preventing the generation of vibration noise during the operation of the compressor 10.

In the refrigerator 1, the blower 20 is operated during the operation to cool the compressor 10 with air and to cool the machine room with the air blown by the blower 20. Since the machine room front part 18 and the machine room rear part were separated by the partition wall 16 formed integrally with the evaporating dish 12 so that the air blown toward this would not be sucked into the blower again, It can prevent short circuit due to blast,
It is possible to prevent ventilation loss due to a short circuit. Further, since the partition wall 16 is formed integrally with the evaporating dish 12, compared with the case where another part is attached,
This separate component mounting work is not required, and the number of components is not increased.

The height of the evaporating dish 12 is set to a height that maintains a distance from the frame bottom plate 32 above the condenser 11, and the outer peripheral flange 35 of the evaporating dish 12 is formed with a notch 34 that allows air to flow. Air can be circulated from the notch 34 to promote the evaporation of the drain of the evaporating dish 12, and the air is also introduced into the rear part 9 of the machine room to improve the heat radiation in the rear part 9 of the machine room. Can be.

That is, when the blower 20 is operated, air near the blower 20 in the rear part 9 of the machine room is sent to the compressor 10. After cooling the compressor 10, the air sent to the compressor 10 is exhausted out of the refrigerator 1 through an opening formed in the unit cover 38.

At this time, the compressor 1 in the rear 9 of the machine room
Of the machine room and the front part 18 of the machine room
6, the air cooled by the compressor 10 does not flow to the machine room front part 18 as described above, and a so-called short circuit is prevented. When air near the blower 20 is sent to the compressor 10 by the blower 20,
Since the primary side of the blower 20 has a negative pressure, the air in the evaporating dish 12 flows through the notch 34 to the rear part 9 of the machine room. When the air inside the evaporating dish 12 flows to the rear part 9 of the machine chamber, the inside of the evaporating dish 12 becomes negative pressure, so that the air outside the evaporating dish 12, that is, outside the refrigerator 1 flows into the evaporating dish 12.

As described above, the air outside the refrigerator 1 flows into the evaporating dish 12, and the notch 3 formed in the outer peripheral flange 35.
After flowing through 4 to the machine room rear portion 9 and cooling the compressor 10, the flow is such that it is discharged from the opening of the unit cover 38. At this time, since the drain of the evaporating dish 12 is exposed to the flow of air, it is easily evaporated, and at the same time, heated by the heat of the condenser 11 and further easily evaporated.

Further, the opening area of the notch 34 of the outer peripheral flange 35 is formed so as to prevent small animals such as rats and insects from entering, so that small animals may damage electric wires in the machine room. That is prevented.

Further, since the water seal structure 13 for water sealing the ends of the drain pipes 42 and 43 is formed integrally with the evaporating dish 12, it is not only unnecessary to attach a separate water seal structure but also to separate the separate parts. Since it is not used, there is no gap and the possibility of drain leakage can be prevented. At the same time, the water seal structure 13 also prevents small animals and insects from entering the refrigerator 1.

When the refrigerator 1 is shifted or transported for moving, the front side is opened so that the openable door 2 does not open and the drawer doors 3, 4, 5, 6 do not come out. They will be transported diagonally upward or upward. At the time of this transportation, if the cover is removed and the left hand is put on the left handle 15 and the right hand is put on the right handle 15, the drain plug 14 is located on the extension of the line of sight.
4 is noticeable. When the drain plug 14 is visible, the transporter notices that the drain in the evaporating dish 12 has to be drained and will drain the drain in the evaporating dish 12. When the unevaporated drain in the evaporating dish 12 is drained, it is possible to prevent the drain from dripping during transportation and soiling the floor.

In this embodiment, the first condenser 11 is arranged in contact with the bottom of the evaporating dish 12 and the second condenser 19 is arranged in the rear part 9 of the machine room. The portion may be disposed so as to be immersed in the drain in the evaporating dish 12, that is, may be used as a so-called dip condenser to further promote the evaporation of the drain.

FIG. 7 shows a second embodiment, and FIG. 7 is a sectional view of the lower part of the refrigerator viewed from the front. Reference numeral 25A denotes a left pedestal angle. Unlike the first embodiment, the lower end of the outer box 32A reaches the lower end of this angle. A heat insulating material 33 is filled in the pedestal angle 25A, thereby preventing small animals such as rats from entering.

In the second embodiment constructed as described above, since there is no work of attaching a separate member to the pedestal angle 25A, the assembling work can be facilitated.
It is also possible to reduce the number of parts.

[0035]

According to the first aspect of the present invention, since the evaporating dish in contact with the condenser is provided above the condenser constituting the refrigerant circuit, and the evaporating dish is fixed, the drain in the evaporating dish is drained. Since a rail structure or the like for pulling out the evaporating dish is not required while maintaining the ability to evaporate, parts costs and assembly costs can be reduced. Moreover, since the evaporating dish is of a fixed type and does not require a rail structure or the like, the evaporating dish can be fixed close to the lower part of the heat-insulating box, so that the internal capacity can be widened.

According to the second aspect of the present invention, since the forced air cooling fan for circulating the air in the machine room is particularly provided, it is possible to forcibly create the air flow in the machine room, and to evaporate. The evaporation of the drain in the dish can be promoted, and the heat radiation in the machine room can be improved.

According to the third aspect of the present invention, the height of the evaporating dish is set to a height that maintains a distance from the bottom plate above the condenser, and the outer peripheral flange of the evaporating dish is formed with a notch for allowing air to flow. As a result, air can be circulated from the notch to promote the evaporation of the drain of the evaporating dish, and the air can be introduced into the machine room to improve the heat radiation in the machine room.

According to the fourth aspect of the present invention, since the partition wall for separating the front part and the rear part of the machine room to prevent a short circuit is formed integrally with the evaporating dish, ventilation loss due to the short circuit is reduced. In addition to eliminating the need for a separate partition wall, the number of parts can be reduced and the number of steps can be reduced.

According to the fifth aspect of the present invention, since the water sealing structure for water sealing the tip of the drain pipe is formed integrally with the evaporating dish, it is not only unnecessary to attach a separate water sealing structure. In addition, the possibility of drain leakage can be prevented.

According to the sixth aspect of the present invention, since the drain of the evaporating dish is heated by the heat of the dipping condenser, the evaporating capacity of the evaporating dish can be greatly improved.

According to the seventh aspect of the present invention, a drain port is provided at the peripheral portion of the evaporating dish for discharging, so that when the refrigerator is tilted at the time of transportation such as moving or moving, the inside of the evaporating dish is previously stored in the evaporating dish. The drain of evaporation can be drained,
It is possible to prevent the drain surface from being spilled on the floor during transportation and soiling the floor surface.

According to the eighth aspect of the present invention, the drain port and the drain plug of the evaporating dish are formed between the transport handles at the front of the bottom surface so that the handles can be hooked when transporting the refrigerator. It is just a position where the drain plug can be seen, so it can be suggested that the drain is drained. For this reason, by carrying out drainage of the drain before transportation by the refrigerator carrier, it is possible to prevent the drain from being spilled on the floor during transportation and soiling the floor surface.

Furthermore, according to the ninth aspect of the present invention, since the drain port and the drain plug are usually covered and concealed by the cover, when the refrigerator is viewed from the front, it is possible to prevent the appearance from being spoiled. Things.

According to the tenth aspect of the present invention, the evaporating dish is of a fixed type in contact with the upper part of the condenser, and a drain port and a drain plug are formed between the handles, so that the drain pipe is sealed with water. The structure is integrally formed, and the notch is formed in the peripheral flange, so that the cost of parts and assembly can be reduced, the capacity in the refrigerator can be widened, and at the same time, drainage of the drainage during transportation is promoted. Since the water seal structure is integrated, drain leakage can be prevented, and evaporation of the drain can be promoted by air flow from the notch.

[Brief description of the drawings]

FIG. 1 is a front view of a refrigerator according to the present invention.

FIG. 2 is an explanatory view showing a plane of the refrigerator.

FIG. 3 is a sectional view of the lower part of the refrigerator as viewed from the right side.

FIG. 4 is a front view of the lower part of the refrigerator as seen from the front.

FIG. 5 is an explanatory view showing an evaporating dish of the refrigerator.

FIG. 6 is a sectional view of the lower part of the refrigerator as viewed from the front.

FIG. 7 is a cross-sectional view of the lower part of the refrigerator according to the second embodiment of the present invention as seen from the front.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 7 Cover 9 Machine room rear part 10 Compressor 11 Condenser 12 Evaporating dish 13 Water seal structure 14 Drainage plug 15 Handle at bottom front part 16 Partition wall 18 Machine room front part 20 Blower 30 Heat insulation box 32 Bottom plate (frame bottom plate) 34 Cut Notch 35 Outer peripheral flange 39 Evaporator (evaporator) 41 Dew tray 42, 43 Drain pipe

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F25D 19/00 550 F25D 19/00 550C 560 560Z

Claims (10)

[Claims] In a refrigerator in which a compressor and a condenser constituting a refrigerant circuit are arranged in a machine room below a heat insulating box, an evaporating dish in contact with an upper part of the condenser is provided.
A refrigerator characterized in that the evaporating dish is fixed. 2. The refrigerator according to claim 1, further comprising a blower for discharging air in the machine room to the outside of the machine room. 3. The evaporating dish has a height dimension that maintains a distance from the bottom plate of the heat-insulating box, and a notch that allows air to flow is formed in an outer peripheral flange of the evaporating dish. The refrigerator according to claim 1 or 2, wherein 4. A compressor and a blower are stored in a rear part of the machine room, and a condenser is stored in a front part of the machine room.
4. The refrigerator according to claim 3, wherein a partition wall for separating a front portion and a rear portion of the machine room to prevent an air short circuit is formed integrally with the evaporating dish. 5. A refrigerator that heats and melts frost adhering to an evaporator with a heater, receives the frost on a dew tray below the evaporator, and discharges defrost water to the outside of the refrigerator with a drain pipe. The refrigerator according to any one of claims 1 to 4, wherein a water-seal structure, which is closed with a water bottle, is formed integrally with the evaporating dish. 6. The refrigerator according to claim 1, wherein a dipping condenser is provided in the evaporating dish. 7. The refrigerator according to claim 1, further comprising a drain port for discharging drain to the outside of the evaporating dish, and a drain plug closing the drain port. 8. A compressor and a condenser constituting a refrigeration circuit, a machine room extending from a front portion to a rear portion is provided at a lower portion of the heat insulating box, and the machine room is provided with a rear portion of a machine room in which the compressor is arranged. In a refrigerator having a height dimension smaller than that of the rear of the machine room and a front portion of the machine room in which the condenser is disposed in a substantially flat space, an evaporating dish in contact with an upper portion of the condenser is provided at the front of the machine room. At the same time, the evaporating dish is fixed, and grips are formed on both sides of the front bottom of the heat-insulating box. A drain port of the evaporating dish and a drain plug for closing the drain port are located between the handles. Refrigerator characterized by having made it. 9. The refrigerator according to claim 7, wherein a cover is provided at a lower portion of the front of the refrigerator to cover a drain port and a drain plug of the evaporating dish. 10. A refrigeration circuit comprising a compressor, a condenser, and an evaporator, a machine room extending from a front part to a rear part is provided at a lower portion of the heat insulating box, and the machine room is provided with a rear part of the machine room in which the compressor is arranged. , A substantially flat space having a smaller height dimension than the rear part of the machine room and a front part of the machine room where the condenser is arranged,
In the refrigerator configured to guide the drain from the evaporator to the outside of the refrigerator with a drain pipe, an evaporating dish for receiving the drain is provided in contact with the upper part of the condenser at the front of the machine room and fixed, and the heat insulating box is provided. A handle is formed on both sides of the front bottom portion, and a front edge of the evaporating dish is extended to a position between the handles, and a drain port and a drain plug for closing the drain port are provided in this portion, and the evaporating dish is provided. A water seal structure integrally formed with the portion protruding to the rear of the machine chamber and closing the end of the drain pipe with a drain, and a notch for air circulation is formed on the outer peripheral flange of the evaporating dish. And refrigerator.